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Loft Insulation & Loft Boarding in Orpington

Loft insulation and boarding for homes in Orpington, Bromley, Bexley, Dartford and Sevenoaks. Fixed price after a free survey: mineral wool from £10 per m².

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Lines open Monday to Sunday, 9am to 7pm.

  • From £10 per m²
  • Based in Orpington
Installer kneeling in a house loft laying a roll of mineral wool insulation between timber joists

Loft insulation in Orpington homes works best as a thick, even layer between and over the joists, with no gaps, so the heat you pay for stays in the house. If your home feels cold upstairs or your heating bills are high, the loft is the first place to look.

Eco Spray Foam Insulation fits mineral wool, Earthwool and insulation boards, and boards lofts for storage without squashing the insulation. We also remove problem spray foam from roofs, and we install spray foam for non-residential uses only: garden rooms, sheds, outbuildings, vans, containers and commercial buildings.

We work from Unit 121, Acro Building on Cray Avenue, in the Cray Valley, and cover Orpington, Bromley, Bexley, Dartford and Sevenoaks. Call 01689 390157, or read the loft insulation cost guide first.

What we do

Our services

Deep, even mineral wool loft insulation between timber joists with a roll and knife beside it

Loft insulation in Orpington

Heat rises, so a loft with thin or no insulation is one of the first places a house loses warmth. We survey the loft first, checking for damp, wiring, ventilation and the hatch, then fit insulation to a depth that suits the roof.

Most lofts get mineral wool or Earthwool quilt laid between and over the joists. Where space is tight, we use insulation boards such as Celotex, or reflective products such as SuperFOIL.

  • Mineral wool and Earthwool, 100mm to 300mm
  • Celotex boards and SuperFOIL where space is tight
  • Top-ups where old insulation is thin or has settled
  • Replacing insulation that is wet, damaged or contaminated
  • Hatch insulation, draught proofing, tank and pipe lagging

Loft insulation cost guide

Raised loft boards on legs with one section lifted to show full-depth insulation underneath

Loft boarding

Boarding turns the loft into safe storage space. The catch is that insulation squashed flat under boards loses much of its value. We raise the boards on legs where we can, so the full depth of insulation stays underneath.

We can insulate and board in one visit, and fit a new hatch or ladder at the same time.

  • New raised boarding on loft legs
  • Raising existing boards that are squashing insulation
  • Insulation and boarding together
  • Loft hatches and ladders

Loft boarding cost guide

Worker in a white suit and respirator removing old spray foam from roof rafters in a house loft

Spray foam removal

Spray foam has been sprayed onto the underside of many UK roofs in recent years. In a house it can cause problems when you sell or remortgage, because some lenders will not lend on a home with spray foam in the roof and surveyors often flag it.

We remove open-cell and closed-cell foam from the rafters, clear the waste, and can fit standard loft insulation in its place. Removal covers homes and businesses.

  • Open-cell and closed-cell foam removal
  • Removal before a sale or remortgage
  • Removal with new loft insulation fitted
  • Waste taken away

Spray foam removal cost guide

Worker spraying foam insulation between the timbers of an unfinished garden office

Spray foam insulation: non-residential uses only

Spray foam fills awkward gaps and stops condensation on metal and timber structures. We install it for non-residential uses only. Jobs are priced after a survey, because the size, shape and use vary too much for a standard price.

We do not install spray foam insulation in homes.

  • Garden rooms and garden offices
  • Sheds, workshops and outbuildings
  • Camper vans and caravans
  • Shipping containers used as offices, stores or workshops
  • Boats and barges
  • Barns, stables and farm buildings
  • Commercial and industrial units
  • Metal, corrugated and galvanised roofs (condensation)

Garden room and shed insulation guide

Prices

What our work costs

These are our published rates. You get a fixed price after a free survey, and the quote shows exactly what it covers. Prices are per square metre of loft area unless shown as a fixed price.

Loft insulation installation
Mineral wool, 100mm£10 per m²
Mineral wool, 200mm£20 per m²
Mineral wool, 300mm£30 per m²
SuperFOIL SF19+£45 per m²
SuperFOIL SF40£65 per m²
Batten and board over SuperFOIL£55 per m²
Insulation removal
Fibreglass, rockwool, mineral wool£10 per m²
Vermiculite, granulated, cellulose, rigid£15 per m²
Open cell spray foam£45 per m²
Closed cell spray foam£85 per m²
Loft boarding
New raised boarding£55 per m²
Raise existing boarding£25 per m²
Access (fixed prices)
Hatch£200
Ladder£150
Hatch and ladder, separate£300
Hatch and ladder, integrated£350

Spray foam insulation for non-residential uses is priced after a survey. We never install spray foam in homes.

Included where needed, at no extra charge

  • Waste removal
  • Anti-fungal timber treatment
  • Hatch insulation and draught proofing
  • Tank and pipe insulation
  • Lap vents
  • Completion certificate

For comparison

Published UK averages for 270mm loft insulation, not our prices:

  • Terraced house: about £654
  • Semi-detached house: about £825
  • Detached house: about £1,206

Source: Checkatrade, loft insulation costs (page updated July 2026).

Before you compare quotes

Ask every firm how many square metres the price covers, which material and thickness, whether VAT is included and whether there is a minimum charge.

Read the loft insulation, loft boarding and spray foam removal cost guides.

How it works

From first call to finished job

  1. Call or send the form

    Tell us what you need and where. We tell you straight away if it is something we do.

  2. Free survey

    We look at the loft or the job, measure up and note anything that needs sorting first.

  3. Fixed quote

    One clear price for the work, with the materials and thickness named.

  4. We do the work

    Our team fits it and clears up. We give you a date when we quote.

  5. We check it with you

    You see the finished job before we leave.

Examples

What our work looks like

These are illustrative images, not photographs of our own jobs.

Before: thin, patchy loft insulation between joists
Before: thin, patchy loft insulation.
After: a deep, even layer of mineral wool insulation in the same loft
After: a full, even layer of insulation.
Camper van interior with spray foam insulation on the metal walls and roof
Camper van interior with spray foam insulation on the metal walls and roof
Underside of a corrugated metal barn roof partly covered in spray foam to stop condensation
Underside of a corrugated metal barn roof partly covered in spray foam to stop condensation
Garden shed workshop with spray foam insulation on the walls and roof
Garden shed workshop with spray foam insulation on the walls and roof

Areas we cover

Loft insulation across Orpington, Bromley and north-west Kent

We are based on Cray Avenue, Orpington, in the London Borough of Bromley and close to the Kent border. We cover Orpington and the towns around it:

  • Bromley borough: Orpington, Petts Wood, St Mary Cray, St Paul's Cray, Chislehurst, Bromley, Beckenham, West Wickham, Biggin Hill
  • Bexley borough: Sidcup, Bexley, Bexleyheath
  • Kent: Dartford, Swanley, Sevenoaks

If you are close by but not on the list, call 01689 390157.

Eco Spray Foam Insulation

Unit 121, Acro Building, Cray Avenue, Orpington, BR5 3QB

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Guides

Loft insulation and spray foam guides

Questions

Loft insulation questions, answered

How much does loft insulation cost in Orpington?
Our mineral wool is £10 per square metre at 100mm, £20 at 200mm and £30 at 300mm, and SuperFOIL is £45 to £65. We survey for free and give you a fixed price. Checkatrade's published UK averages put 270mm in a semi-detached house at about £825 (page updated July 2026). See the loft insulation cost guide.

How thick should loft insulation be?
The usual UK guidance is about 270mm of mineral wool. We check what is already there and top it up to a suitable depth, rather than replacing insulation that still works.

Can I board my loft and keep it insulated?
Yes. The insulation has to stay thick and unsquashed, so we raise the boards on legs above it. Boards laid straight onto thin insulation waste most of its value. See the loft boarding cost guide.

Do you install spray foam insulation in homes?
No. We install spray foam for non-residential uses only, such as garden rooms, sheds, outbuildings, vans, containers and commercial or farm buildings. For homes we fit mineral wool, Earthwool and insulation boards.

Why would I remove spray foam from my loft?
Mostly because of mortgages and sales. Some lenders refuse to lend on a house with spray foam in the roof, and surveyors flag it. Removal can clear the way. Read can I get a mortgage with spray foam?

How much does spray foam removal cost?
Our rates are £45 per square metre for open-cell foam and £85 for closed-cell foam, priced after a free survey. Published UK guides put removal at about £40 to £80 per square metre. See the spray foam removal cost guide.

Can you insulate my garden room or shed?
Yes. Garden rooms, garden offices, sheds and outbuildings are non-residential uses, so spray foam is an option, along with boards. We price these after a survey. Read the garden room insulation guide.

Which areas do you cover, and is the survey free?
The survey is free. We are based on Cray Avenue in Orpington and cover Orpington, Bromley, Bexley, Dartford, Sevenoaks and nearby towns, including Petts Wood, Chislehurst, Sidcup, Bexleyheath and Swanley. Call 01689 390157 if you are close by but not listed.

About

Who we are

Eco Spray Foam Insulation is based on Cray Avenue in Orpington. Our team has more than 25 years in the building trade and more than 10 years in the home energy saving industry. We insulate and board lofts, remove problem spray foam, and fit spray foam for non-residential uses.

All our work is covered by insurance, including public liability up to £5 million.

Unit 121, Acro Building, Cray Avenue, Orpington, BR5 3QB. Phone 01689 390157. Open Monday to Sunday, 9am to 7pm.

Get a price for your loft

Tell us what you need, your postcode and a few details. The survey is free, and we use your details only to answer your request.

Prefer to talk? Call 01689 390157, Monday to Sunday, 9am to 7pm.

Request a free quote

Step 1 of 2: the job
Step 2 of 2: how to reach you

We reply Monday to Sunday, 9am to 7pm. Your details are used only to answer this request. See our privacy notice.

Cold loft, or spray foam you want gone?

Call and tell us what you have.

Lines open Monday to Sunday, 9am to 7pm.

01689 390157 Request a quote
Call 01689 390157